http://www.cbc.ca/canada/edmonton/story/2010/07/16/edmonton-missing-couple-rcp.html
This article mentions Vader's August 2009 charges, which include "possession of break-in tools, driving a motor vehicle while unauthorized, operating an irregular motor vehicle and trailer, as well as a couple of weapons charges."
Sounds as if the suspect has at least a little experience towing vehicles, so he could have been the one who moved the RV before it was burned.
This article mentions Vader's August 2009 charges, which include "possession of break-in tools, driving a motor vehicle while unauthorized, operating an irregular motor vehicle and trailer, as well as a couple of weapons charges."
Sounds as if the suspect has at least a little experience towing vehicles, so he could have been the one who moved the RV before it was burned.